Ōkubo Tadanori

Ōkubo Tadanori (大久保忠礼^?, January 13, 1842 – August 10, 1897) was the 9th daimyō of Odawara Domain in Sagami Province, (modern-day Kanagawa Prefecture) in late-Edo period Japan. Before the Meiji Restoration, his courtesy title was Kaga no Kami.

Ōkubo Tadanori was the nephew of Tokugawa Nariaki, which made him a cousin to Shōgun Tokugawa Yoshinobu. He was born as the 5th son of Matsudaira Yorihiro, daimyō of Takamatsu Domain, in Sanuki Province. On the death of former daimyō of Odawara, Ōkubo Tadanao in 1859 he was adopted into the Ōkubo clan as 11th clan head, and by default, daimyō of Odawara Domain. He served in a number of posts within the administration of the Tokugawa shogunate, including that of Sōshaban (Master of Ceremonies) in November 1863, and accompanied Shogun Tokugawa Iemochi on his visit to Kyoto in 1864. He was briefly appointed Kōfu jōdai from September to December 1867.